trigeminous adjective4 •threefoldThe trigeminous variety presents by far the most interesting pathological entity yet observed among diseases of which cough is a symptom. — 1886 •exhibiting trigeminyAs the action developed further, trigeminous beats began; still later they developed into an irregular spontaneous ventricular rhythm. — 1926 •trigeminalIt is compression of the retrogasserian trigeminal nerve within the confines of the porous trigeminous. — 2019 •born three together; being one of three born at the same birth